Collect. Czech. Chem. Commun. 1985, 50, 1450-1456

Oscillations of bromine in Belousov-Zhabotinskii type reaction with oxalic acid

Peter Ševčík and Jana Dubovská

Department of Physical Chemistry, Comenius University, 842 15 Bratislava


The authors studied the influence of the concentrations of reactants and catalysts on the parameters of the catalysed oscillation reaction of bromate ions with oxalic acid in the medium of sulphuric acid. Ce(IV) and Mn(III) ions induce the reaction of bromine in the oxidation state either +1 or 0 with oxalic acid. In the presence of bromate ions, the induced reaction can lead to the formation of the same quantity of bromine as in the first oscillation cycle of the oscillation reaction.